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Finding the Fourth Proportional to 115,846.64, 159,864 and 65,546.72

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Solution

The fourth proportional to 115,846.64, 159,864 and 65,546.72 is: 90,452.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,846.64 : 159,864 = 65,546.72 : x
  2. Step 2: Convert to fraction form
    115,846.64/159,864 = 65,546.72/x
  3. Step 3: Cross multiply
    115,846.64x = 159,864 × 65,546.72
  4. Step 4: Simplify right side
    115,846.64x = 10,478,560,846.08
  5. Step 5: Solve for x
    x = 10,478,560,846.08/115,846.64
  6. Step 6: Final answer
    x = 90,452.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.